Safe for Toddlers & Babies – Each 1.8-inch rattle ball is made from ultra-durable, BPA-free clear polycarbonate—too large to swallow, crack-resistant, and securely sealed for safe indoor and outdoor play. Stimulating Sensory Play – Designed to engage visual and auditory senses, these vibrant, slow-rolling balls produce gentle rattle sounds that support sensory development, curiosity, and calm stimulation. STEM Learning & Development – Boosts hand-eye coordination, motor skills, and early STEM discovery. Great for exploring cause-and-effect as toddlers track movement, experiment with timing, and race multiple balls. Compatible & Expandable – Works with all WEofferwhatYOUwant Ball Drop towers and other large-track marble run sets. Perfect for replacing lost pieces or expanding playtime with more rolling action and variety. Durable, Hygienic & Travel-Friendly – Crafted for rough toddler use with easy-to-clean surfaces. Ideal for nurseries, preschools, Montessori classrooms, or quiet time at home. Lightweight design makes them perfect for on-the-go fun. Enhance Playtime with the WEofferwhatYOUwant 6-Pack Rattle Balls – Safe, Sensory, and STEM-Ready! Add excitement and developmental value to your child’s favourite ball drop tower with this set of 6 colourful 1.8-inch activity balls. Perfect for toddlers and babies aged 9 months and up, these high-quality rattle balls are engineered for sensory stimulation, physical coordination, and early STEM learning. Made from strong, crack-resistant polycarbonate, each ball is ultra-sonically sealed and screw-fastened—ensuring safe play for even the most active toddlers. Too large to be swallowed and tested to meet global child safety standards (CPSIA, EN71, ASTM), they offer peace of mind for parents and educators. Watch your child light up as the balls roll, spin, and rattle down towers—supporting hand-eye coordination, visual tracking, auditory response, and fine motor skills. Whether used for solo sensory exploration or group play in nurseries, playrooms, or classrooms, these balls make learning fun, hands-on, and interactive. Compatible with all WEofferwhatYOUwant Ball Drop sets and most standard toddler ball tower toys, they’re ideal as a replacement pack, an expansion set, or as a gift for birthdays, Christmas, and early learning milestones.